Radius (2017) Characters, Setting & Themes Explained

Liam suffers from a deadly condition where any living being that comes within approximately 50 feet of him dies instantly. This mysterious aura forces him to remain isolated and creates the film's central survival tension.

• lethal aura
• proximity death
• radius
• Liam condition

The movie is set in a quiet, isolated rural town featuring a roadside diner, farm, hospital, and remote cabin. The setting is deliberately desolate, with empty streets and abandoned buildings as unexplained deaths begin occurring near the protagonist.

• rural town
• setting
• diner
• hospital
• cabin

Radius is set in present day, featuring modern technology such as cars, CT scans, 911 emergency services, and hospitals. The contemporary setting grounds the supernatural premise in a recognizable world until the sci-fi twist emerges.

• present day
• modern
• contemporary
• time period

Rose Daerwood is an amnesiac woman who traveled with Liam and unexpectedly becomes his ally. She can approach him without dying, suggesting a shared condition. Her search for her missing sister Lily drives much of her motivation throughout the film.

• Rose Daerwood
• character
• amnesia
• sister Lily

Liam Hartwell is the amnesiac protagonist who wakes after a car accident with no memory of his past. He discovers his presence triggers lethal events around him and struggles to uncover his true identity while trying to protect Rose.

• Liam Hartwell
• protagonist
• amnesia
• Diego Klattenhoff

The film uses Liam's deadly aura to explore how proximity functions as both weapon and burden. Characters must reckon with the cost of closeness, physical contact becomes lethal, forcing impossible moral choices about isolation versus connection.

• proximity
• isolation
• theme
• closeness
• death

Amnesia frames the central mystery, with both Liam and Rose searching for their true identities. The film forces characters to define themselves through actions rather than remembered names, reassembling identity through shared peril and uncovered secrets.

• amnesia
• memory
• identity
• theme
• self-discovery

The relationship between Liam and Rose tests loyalty and truth under extreme pressure. Trust wavers as hidden truths surface, revealing how companionship can be both a lifeline and a liability. Their bond is complicated by past traumas and the danger proximity creates.

• love
• trust
• relationship
• theme
• loyalty

The bodies found throughout the town display unusual pale eyes, suggesting they died from Liam's lethal proximity. This visual marker serves as the horrifying clue that reveals the true cause of the mass deaths occurring near the protagonist.

• pale eyes
• death
• victims
• visual marker

Rose can approach Liam without suffering his lethal proximity effect, hinting that she shares a similar condition. This mysterious immunity becomes a key plot element that deepens the mystery surrounding their connection and past.

• Rose immunity
• proximity
• connection
• condition

Sheriff Laredo is the law enforcement figure who pursues Liam and Rose, piecing together the mystery behind the deaths. He embodies the tension between protecting the public and respecting the couple's precarious situation, representing the escalating external threat.

• Sheriff Laredo
• law enforcement
• antagonist
• pursuit

Radius blends sci-fi horror with a twisted dark psychological thriller tone. The film combines supernatural horror, specifically a cosmic anomaly causing lethal proximity, with deeply personal tragedy, resulting in a bleak and emotionally taxing experience.

• sci-fi
• horror
• thriller
• genre
• tone